wannacry | 6668ff2ee61d8d20938d8f9aefa2dfd3f441e4609a9e4a74328ef941ea90dbc7

General

Target

2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe
Size

5.0MB
MD5

1e05da24ee21b67a07bbcae3b185a229
SHA1

fe2b70ec86c10a74200d97eade5f282ae139a5f1
SHA256

6668ff2ee61d8d20938d8f9aefa2dfd3f441e4609a9e4a74328ef941ea90dbc7
SHA512

e9433a456be4d4b95fb54f397a27bb5ff5b3767c2e7f136c306152e934bed7193a2c7e9d90286d96956919a4b1a92dd62885ef146090970010589f56531a230d
SSDEEP

98304:ZDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2:ZDqPe1Cxcxk3ZAEUadzR8yc4

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3345) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

Executes dropped EXE 1 IoCs

pid	Process
2280	tasksche.exe

Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9a-8f-27-b6-99-32\WpadDecisionTime = 0088a8e4570bdb01	2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{143AD548-AFBD-4C83-BC42-BCD3490A7857}\WpadDecision = "0"	2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{143AD548-AFBD-4C83-BC42-BCD3490A7857}\WpadNetworkName = "Network 3"	2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9a-8f-27-b6-99-32	2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00bd000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9a-8f-27-b6-99-32\WpadDecisionReason = "1"	2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{143AD548-AFBD-4C83-BC42-BCD3490A7857}\WpadDecisionReason = "1"	2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9a-8f-27-b6-99-32\WpadDecision = "0"	2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{143AD548-AFBD-4C83-BC42-BCD3490A7857}	2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{143AD548-AFBD-4C83-BC42-BCD3490A7857}\WpadDecisionTime = 0088a8e4570bdb01	2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{143AD548-AFBD-4C83-BC42-BCD3490A7857}\9a-8f-27-b6-99-32	2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2696
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2280

C:\Users\Admin\AppData\Local\Temp\2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-20_1e05da24ee21b67a07bbcae3b185a229_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2064

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

2

T1046

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
e80a41a1473ec8c941fee7a1d5ffc079

SHA1
1488a0ae18033b30e9eb279e5bc22791d24b76e0

SHA256
c5e53ab0c9543bd7ec8e2f4fbf76cff620ac79f488fb991a21f9a29cf22885a3

SHA512
5e246e5d1f8fcdcc69beb27c2f2b7ceddb9816000f9ac2c9450684164c9c5caf4793ecc5bb251f0786fc6a91b1a9f0b25cbcb2bac42366eea4f2054a02ae2e3e

Download Submit

Analysis

Sharing